
#
Turn DEF refill bottle 1coun ter-clockwise
and remo veit. #
Screwt he pr otectiv ecap ont oDEFrefill bot‐
tle 1 again.
Fi lling procedur ewitht he pum pnozzle of an
DEF filling pump #
Inser tthe pum pnozzle int othe filler nec kand
add DE F.When doing so, do no toverfill the
DEF tank .You can also use an DEF filling
pum pfor truc ks.
Closing theD EFfiller cap on filler caps that
ar en otloc kable #
Afterf illing theD EFtank ,p lace DEF filler cap
1 onthef iller nec kand tigh tenitc lock wise. #
Turn theD EFfiller cap until thel ette ring is
legible and horizontal.
The filler nec kisonlyl oc kedc orrectly when
th is is thec ase. #
Close theh ood. Closing
theD EFfiller cap on loc kable filler
caps #
Afterf illing theD EFtank ,p lace DEF filler cap
1 onthef iller nec kand tigh tenitc lock wise. #
Remo vetool 4 from DEF filler cap 1and
st or eitint hevehicle tool kit. #
Pull co ver3on DEF filler cap 1upover
holes 2of DEF filler cap 1,turna nd
re lease. #
Turn DEF filler cap 1.
If DE Ffiller cap 1turns freel y,theD EFtank
is closed. Park
ing Pa
rking thev ehicle &
WARNING Risk offire caused byhot
ex haus tsystemp arts
Flammable material suc hasleaves, grass or
twigs ma yignit eift heyc ome int ocontact
wi th hotp arts of thee xhau stsystem or
ex haus tgas flow. #
Park thev ehicle so that no flammable
material can com eintoc ontact wi thhot
ve hicle components. 14 0
Driving and pa rking

&
WARNING Swerving of thev ehicle/
trailer combination due toinc reased
speed
If th ev ehicle/trailer combination swer ves,
yo uc an lose control of it.
The vehicle/trailer combination can even tip
ove r. #
Under no ci rcums tances shoul dyou try
to inc rease thes peed tostra ighten the
ve hicle/trailer combination. #
Reduce speed and do no tcounter-s teer. #
If necessar y,appl ythe brakes. &
WARNING Risk of accident du etothe
brak esystem overheating
If yo ul eave your foot on theb rake pedal
when driving, theb rake system ma yoverheat.
This increases theb raking dis tance and the
brak esystemm ayeve nfail. #
Neveru se theb rake pedal as afootrest. #
Do no tdepress theb rake pedal and the
accelerator pedal at thes ame time
while driving. &
WARNING Danger of accident du eto
unsuitable ball coupling
If yo ui nstall an unsuitable ball coupling, over‐
loading of thet railer hitc hand rear axle will
be ther esult. This is particularly thec ase if
th eb all coupling is relatively long or angled
dif fere ntl y.
The handling characteristic smaybe heavily
impaired and thet railer can become
de tach ed. Ther eisarisk offata linjur y. #
Only ins tallab all couplin gthat meets
th ep ermitted dimension sand has been
designed fort he trailer operation
re qu irements. #
Do no tmodif ythe ball coupling or the
traile rhitch. &
WARNING Risk of accident and inju ry
due toan incor rectl yins talled ball cou‐
pling
If th eb all coupling is no tins talled and
engaged cor rectly ,itm aybecome de tach ed
during tr avel and endanger other road users.
Ther eisar isk offata linjur y. #
Install and secur ethe ball coupling as
described in theb all coupling manufac‐
turer's ins tallation instructions. #
When theb all coupling has been ins tal‐
led, ensur ethat it is cor rectly secu red
befor eevery trip. &
WARNING Risk of accident du etoan
incor rectl yins tal led and secured ball
coupling
If th eb all coupling has no tbeen cor rectly
ins talled and secured, thet railer can become
de tach ed. #
Install and secur ethe ball coupling as
described in theb all coupling manufac‐
turer's ins tallation instructions. #
When theb all coupling has been ins tal‐
led, ensur ethat it is cor rectly secu red
befor eevery trip. *
NO
TEWearing out theb rake linings by
continuously dep ressing theb rake pedal #
Do no tdepress theb rake pedal continu‐
ously whils tdriving. #
Touse theb raking ef fect of thee ngine,
shif ttoa lowe rgear in good time. Alw
aysc ompl ywitht he operating instructions of
th em anufacturer of thet railer coupling and the
ball nec k.
Place your vehicle/trailer combination on sur fa‐
ces that ar ease vena spossible and secu reit
agains trolling away ( /pag e140). Coupl eand
uncoupl ethe trailer carefully.
When backing up thet ow ing vehicle, ensur ethat
th er eisn o-one between thev ehicle and the
traile r.
If yo udon otcouple thet railer tothet ow ing vehi‐
cle cor rectly ,the trailer ma ybecome de tach ed.
Onceith as been coupled and is roadwor thy, the
traile rmustbeinah orizontalp osition behin dthe
to wing vehicle. Driving and parking
16 3

No
tethef ollowing rega rding thet ongue weight:
R Mak efull use of them aximum tongu eweight,
wher epossible.
R Neverfall belo walegall yprescribed minimum
to ngu eweight ;the tongu eweight must
alw aysbep ositive.
R Do no texceed or fall belo wthe permissible
to ngu eweights –this mus tbeobservedd ur‐
ing loading and unloading of thet railer.
Do no texceed thef ollowing values:
R Perm itted braked or unbraked towing capa‐
city
The maximum permissible towing capacity for
unbraked trailer sis1,653 lbs (750 kg).
R Perm issible rear axle load of thet ow ing vehi‐
cle
R Perm issible gross mass of thet ow ing vehicle
R Perm issible gross mass of thet railer
R Perm issible gross combination mass
R Maximum permissible speed of thet railer
The releva nt pe rmitted values, whic hmustn otbe
ex ceeded, can be found in thef ollowing places:
R Inyour vehicle documents
R Onthei dentification plat eofthe trailer hitch
R Onthet railer's identification plate
R Onthev ehicle identification plate
If th er ea rediscrepancies between thev alues, the
lo west one shall apply.
Befor edriving off, ensur ethe following:
R The tir epressur eont herear axle of thet ow‐
ing vehicle has been se tfor them aximum
load.
R The headlamps ha vebeen se tcorrectly.
Va lues appr ovedbyt he manufacturer can be
fo und on thei dentification plates and in thes ec‐
tion fort he towing vehicle (/ page225).
Yo ur vehicle will beha vediffere ntl yw ithat railer
re lativ etow ithout atrailer:
R The vehicle/trailer combination will be heav‐
ier.
R The vehicle/trailer combination will be
re stricted in its acceleration and climbing
ability.
R The vehicle/trailer combination will ha vean
inc reased brakin gdista nce. R
The vehicle/trailer combination will be more
susceptible tocrosswind gu sts.
R The vehicle/trailer combination will requ ire
mor esensitiv esteering.
R The vehicle/trailer combination will ha ve a
lar gerturning circle.
This ma yimp airt he vehicle's driving characteris‐
tics.
When drivin gwithav ehicle/trailer combination,
alw aysa dap tyour speed tothec urrent road and
we ather conditions. Driv ecarefull y.Ke ep asuffi‐
cient saf edista nce.
Co mply withthe maximum speed of 49 mph
(80 km/h) or 62 mph(100k m/h), even in coun‐
tries in whic hhigher speeds ar epermitted for
ve hicle/trailer combinations.
Compl ywitht he legally prescribed maximum
speed forv ehicle/trailer combination sinforce in
th ec ount ry,s tat eorC anadian pr ovinc einq ues‐
tion. Befor esetting off, consult thet railer's vehi‐
cle documents tosee them aximum permissible
speed fory our trailer.
At tach onl yana pprove dtrailer hitc htoyourvehi‐
cle. Use only aball nec kthat has been appr oved
fo ry our vehicle. Further information about availa‐
bilit yand ins tallation of thet railer electrics is
av ailable from an yqualified specialis tworks hop.
The trailer hitc hisone of them ostimp ortant
ve hicle parts forr oad saf ety. Compl ywitht he
instructions on operating, maintaining and servic‐
ing in them anufacturer's operating instructions.
% Yo
ur vehicle's bumper sarenots uitable for
ins talling de tach able trailer towh itch es.
Do no tattac hanyrented traile rtow hitches or
an yo ther de tach able trailer towh itch es tothe
bumpers.
% When using
atrailer ,remember that
PA RKTRONI Cisavailable onl ytoalimited
ex tent, if at all.
% The height of
theb all head will change
depending on thev ehicle's load. In this case,
use atrailer wit haheight-adjus table dr aw‐
bar.
Driving no tes
The maximum permissible speed forv ehicle/
trailer combination sdepends on thet ype of
trailer .Befor esetting off, consult thet railer's
ve hicle documents tosee them aximum permissi‐
ble speed fory our trailer. 16 4
Driving and pa rking

Yo
ur vehicle will beha vediffere ntl yw ithat railer
re lativ etow ithout atrailer ,and will consume
mor efuel. In thec ase of along and steep
descent, youm usts elec tshif trange 3,2or 1in
good time.
% This also applies if
thec ruise cont rolis
switched on.
Yo uw illthereb ymakeu se of thee ngine' sbraking
ef fect and will no thave tobrak easo ften tocon‐
trol thes peed. This will take some of thes train
of ft he brak esystema nd pr event theb rake sf rom
ove rheating and wearing tooq uickl y.Ifyo un eed
additional braking, depress theb rake pedal inter‐
mittently rath er than continuousl y.
Drivin gtips
If th et railer sw ays, remember thef ollowing
points:
R Do no taccelerat eunder an ycircums tances.
R Do no tcounter steer.
R If necessar y,appl ythe brakes.
% Yo
uc an pr eventthet railer from sw aying and
rock ingbyretrofitting stabilizer bar or trailer
st abilit yprograms. Youc an obtain fur ther
information from an authorized Mercedes-
Benz Center.
When youa redrivin gwithat railer ,compl ywith
th ef ollowing points:
R Maintain agreater dis tance than when driving
without atrailer.
R Avoid braking abruptl y.If possible, brak egen‐
tl yf irst of al lsot hatthet railer closes up
behind your vehicle. Then, increase theb rak‐
ing forc er apidl y.
R The values given fors tart-o ff gradeability
re fertos ea level. When driving in moun tain‐
ous areas, no tethat engine output, and there‐
fo re start-of fgradeability ,will dec rease with
inc reasin galtitude. Coupling/uncoupling
atrailer Coupling
atrailer
* NO
TEDama getothev ehicle batter ydue
to full discharge Charging
thet railer batter yusing thep ower
supply of thet railer can damag ethe vehicle
batter y. #
Do no tuse thev ehicle's po wersupply
to charge thet railer batter y. #
Shif tthe selector le vertop osition 005D. #
Appl ythe vehicle's parking brake. #
Close all thed oors. #
Position thet railer on alevel sur face behind
th ev ehicle.
% The ball head height
changes depending on
th ev ehicle's load. In this case, use atrailer
wit hah eight-adjus table trailer dr awbar. #
Couple up thet railer. #
Establish all electrical and other connections
to thet railer. #
Remo veobject sordevices whic hpreve nt the
traile rfromr olling, e.g. wheel choc ks. #
Release thet railer's parking brake.
% The
vehicle harness has acable connection
to theb rake light indicator lamp.
Obser vethem aximum permissible trailer dimen‐
sions (widt hand length).
Mos tUSs tatesa nd all Canadian pr ovinces pre‐
scribe thef ollowing points, and youa reurge ntly
re commended tocomply wi th these:
R Safetyc hains between thet ow ing vehicle and
th et railer .The chains should be routed in a
criss-cross pat tern unde rthe trailer dr awbar.
The ym ustbec onnected tothet railer tow
hitc hand no ttothe bumper or tothev ehicle
axle.
Lea vesuf ficient sla ckinthec hains. This
allo wsfore vens harp cornering.
R Aseparat ebrake system is requ ired forc er‐
ta in trailers.
R Asafet yf eatur eisrequired forb rake dt railers.
De term ine thes pecific requ irements acco rd‐
ing tother ele vant la ws.
If th et railer becomes de tach ed from thet ow‐
ing vehicle, thes afet yf eatur etrigger sthe
trailer brakes and can thus reduce thed anger.
Un coupling atrailer &
WARNING Risk of being crushed and
becoming trapped whe nuncoupling a
trailer
Whe nuncoupling atrail er wi than engaged
ine rtia-activated brake, your han dmay Drivin
gand parking 16 5

Overvie
wofthe buttons on thes teering
wheel 1
0038 Backbutton, lef t(on-boar dcomputer)
2 Touc hC ontrol, lef t(on-boar dcomputer)
3 Main men ubutton (on-boar dcomputer)
4 Buttong roup forc ruisec ontrol or ActiveD is‐
ta nce Assi stDISTRONIC Ope
ratin gthe on-boar dcom puter &
WARNING Risk of distraction from infor‐
mation sy stems and communications
equipment
If yo uo perat einformation and communica‐
tio ne quipment integ ratedint hevehicle when
driving, youw ill be distracted from thet raffic
situation. This could also cause youtol ose
control of thev ehicle. #
Onlyoperat ethis equipment when the
traf fics ituation permits. #
Ifyo uc anno tbes ureoft his,stop the
ve hicle whils tpaying attention toroad
and traf ficc onditions and ope rate the
equipment wit hthe vehicle stationar y. Yo
um usto bse rvet he legal requirements fort he
countr yinwhich youa recur rentl yd riving when
ope rating theo n-boar dcomputer.
Operating theo n-boa rdcompu ter( ve hicles
with steering wheel but tons)
% The displa
ysoftheo n-boar dcomputer
appear on them ultifunction display
(/ page171).
When thef unction is switched on, dif fere nt signal
to nes will pr ovide feedbac kwhile theo n-board
computer is being operated. These include asig‐
nal tone when thee nd of alistisr eached or
when alistisb eingscrolled thro ugh. The on-boar
dcomputer is operated via left-hand
To uc hC ontrol 2and bac kbutton on thel eft 1. The on-boar
dcomputer is operated using thef ol‐
lowing buttons:
R Backbutton on thel eft 1
R Left-hand Touc hC ontrol 2
R Main men ubutton on thel eft 3
The following menus ar eavailable depending on
th ee quipment:
R Service
R Assistance
R Trip
R Settings #
Tocall up them ainm enu: press bac kbut‐
to nont he left 1repeatedly ,orpress and
hold it. 17 0
Instrument Displa yand on-boar dcomputer

Ad
justin gthe volume #
Toincrease volume: turnthe volume control
clockwise. #
Todec rease volume: turnthe volume con‐
trol coun ter-clockwise. #
Tomute: pressthev olume control. Sy
stem settings Au
dio settings Setting the sound
Multimedia sy
stem:
4 SETUP 5
Audio settings 5
Sound
Equalizer #
Select Bass,Middle orTreble . #
Chang ethe settings.
Balance and fader #
Select Balance orFader. #
Chang ethe settings.
Re setting audio settings
Multimedia sy stem:
4 SETUP 5
Audio settings #
Select Reset Audio Settings. #
Confir mwithYES.
The audio settings ar ereset. Setting
thet imeformat Multimedia sy
stem:
4 SETUP 5
Clock #
Select am/pm or24h. Re
setting to factorysettings Multimedi
asystem:
4 SETUP #
Select Factory settings. #
Confir mthe prom ptwith Yes.
The settings ar erese ttot hefactor ysettings. Showing the softwar
eversion Multimedia sy
stem:
4 SETUP #
Select Software Version: .
The cur rent softwar eversion is displa yed. Ra
dio Setting the frequency band
Multimedia sy
stem:
4 002A #
Press the002A button repeatedl yuntil the
desired transmission rang eiss et.
The transmissio nrang echanges in this order :FM
-D AB -AM.
% The
DABtransmission rang eisn otavailable
in all countries. Selecting
aradio station Multimedi
asystem:
4 002A
Setting astatio nusingthe frequency #
Press the0055 or0054 button tochang ethe
frequency.
% Press brief
ly:then extorp reviou sstatio nis
set.
Press and hold: scrollsstep-b y-step thro ugh
th ef requ encies.
Setting astatio nfromt hestation list #
Press or tur nthe right-han dside control
knob.
The statio nlistiss hown. #
Select astation.
The statio niss et.
Selecting stations via thes tatio npresets #
Call up thes tatio np resets (/ page179). #
Select astation.
The statio niss et. Saving
astatio nasa favo rite Re
quirements:
R DABorFMiss etas thet ransmission range
(/ page 180).
Mul timedi asyst em:
4 002A #
Setas tation #
Pres sthe f button.
The statio npresets ar eshown. #
Select aposition ,then press and hold f
or ther ight cont rolk no b.
The statio nselec tediss aved. 18 0
MB audios ystem

R
Fasten thel oad tothet ie-down eyes and dis‐
tribut ethe load evenlya mong them.
R Use tie-down eyes and fastening components
whic haresuitable fort he weight and size of
th el oad. Load distribution
* NO
TERisk of damag etothefloor co ver‐
ing Excessiv
epoint loading on thec argo com‐
partmen tfloor or on thel oad area can nega‐
tivel yaffect thed riving characteristic sand
could damag ethe floor co vering. #
Vehicles with rear-wheel drive: dis‐
tribu tethel oad uniformly .When doing
so, ensur ethat theo verall cen terof
gr av ity of thel oad is alw aysasl owand
close tothec enter as possible and
between thea xles near ther ear axle. #
Vehicles with all-wheel drive: distrib‐
ut et he load uniforml y.When doing so,
ensur ethat theo verall cen terofg ravity
of thel oad is alw aysasl owand close to
th ec enter as possible and between the
axles. Fo
rC argo Vans, buses and Passenger Vans:
R Alwayst ranspor tloads in thec argo compart‐
ment.
R Alwaysp lace thel oad agains tthe seat backr‐
ests of ther ear benc hseat.
R Movelarge and heavy loads as fart ow ards
th ef ront of thev ehicle as possible in the
direction of tra vela ga ins tthe rear ben ch
seat. Stow loads flush wit hthe rear ben ch
seat.
R Alwaysa dditionally secur ethe load wit hsuita‐
ble load securing aids or tie downs.
R The load mus tnotprotru de abo vetheu pper
edg eoft he seat backrests.
R Transpor tloads behin dseat sthat ar enot
occupied.
R Ifth er ear benc hseat is no toccupied, insert
th es eat belts crosswise int othe seat belt
buckle of theo pposit eseat belt. Securing loads
Note
sonl oad securing &
WARNING Risk of accident and injury
du etoi ncorrect use of thel ashing stra ps
If yo ua ttac hthe lashing stra pi ncor rectly
whe nsecu ring loads, thef ollowing ma yoccur
in thee vent of abrup tchanges in direction,
braking maneuver or an accident:
R The tie-down eyes ma ybecome de tach ed
or thel ashing stra pm aytear if thep er‐
missible load is exceeded.
R The load cann otbe restra ined.
This ma ycause thel oad toslip, tip overorbe
fl ung about ,striking vehicle occupants. #
Alwayst ension thel ashing stra ps in the
proper manner and onl ybetwe en the
described tie-down eyes. #
Alwaysu se lashing stra ps designed spe‐
cificall yfor thel oads. %
Obser
vethei nformation relatin gtot he maxi‐
mum loading capacity of thei ndividual cargo
tie-down point. If youc ombin evarious cargo
tie-down points tosecur eaload, alw ayst ake
th em aximum loading capacity of thew eak‐
es tc argo tie-down poin tint oa ccount .During
maximum full- stop braking, forc es ma yact
whic hcan multipl ythe weight of thel oad.
Alw aysu se se veralc argo tie-down point sto
distribut eand spread thel oad. Spread the
load evenly between thec argo tie-down
points or tie-down eyes.
Alw ayso bser vetheo perating instruction sorthe
lashing stra pm anufacturer's instruction sfor the
operation of thel ashing stra p.
Obser vethei nformation relatin gtot he maximum
loading capacity of thec argo tie-down points
(/ page267).
As thed rive r,yo ua re re sponsible fore nsuring the
fo llowing:
R The load is secured agains tslipping, tipping,
ro lling or falling off.
Ta ke usual traf ficc onditions as well as swerv‐
ing or full brak eapplication and bad roads
int oa ccount.
R The applicable requ irements and guidelines
re latin gtol oad-securing practices ar emet.
If th is is no tthe case, this ma yconstitut ea
punishable of fense, depending on local legis‐ 18 6
Transporting

lation and an
yensuin gconsequences.
Obser vecountr y-specific la ws.
Mak esuret hat thel oad is secur ebefor eevery
jou rney and at regular inter vals during along
journe y.Ad jus tthe load securing as necessar y.
Information on ho wtosecureloads cor rectly can
be obtained from them anufacturer sofload
securing aids or tie downs forl oad-securing, for
ex ample.
When securing loads, obse rvet he following:
R Fill spaces between thel oad and thec argo
compartmen twalls or wheel wells. Forthis
purpose, use rigid load securing aids, suc has
we dges, wooden fixing sorp adding.
R Attach secured and stabilized loads in all
directions.
Use thec argo tie-down points or tie-down
ey es and thel oading rails in thec argo com‐
partmen toronthe load sur face.
Only use tie downs, suc haslashing rods, lock
ro ds or lashing nets and lashing stra ps, which
has been tested in accordance wit hcurrent
st andards (e.g. DI NEN). Alw aysu sethec argo
tie-down points closes ttothe load; pad sharp
edges.
Loads, and heavy loads in particular ,should
preferably be secured using thet ie-down
ey es.
% Yo
uc an obtain tie downs tested in accord‐
ance wit hcurrent standards (e.g. DI NEN)
from an yspecialis tcompan yorfromaq uali‐
fi ed specialis tworks hop.
Note sont he partition
Wi thout apartition ,vehicles that ar eappr ove das
commercial vehicles (N1 ,N2) do no tfulfill ISO
27 956, whi chdescribes thee quipment forp rop‐
erly securing aloa dind elivery vehicles. If the
ve hicle is used totranspo rtgoods, retrofitting the
partition is stro ng lyrecommended ,asprope rly
securing thel oad in vehicles without apartition
will alw aysbeac omplexoperation.
% Yo
um ustn otstor ea nything in thea rea
between theb ackoft he seats and thep arti‐
tion. Overvie
wofcargo tie-down points Cargo tie-down points (e
xample:Passenger
Va n)
1 Tie-down eyes Cargo tie-down points (e
xample: Cargo Van
without loadin grails)
1 Tie-down eyes
Secur eloose loads wit hanapprove dlashing net
or atarps.
Alw aysf astent he lashing ne tortarptoa llav aila‐
ble cargo tie-down points .Makes uret hat thef as‐
te ning hoo ksares ecured agains tacciden tal
opening.
If yo ur vehicle is equipped wit hloading rails in
th ec argo compartmen tfloor ,you can place lash‐
ing rods directly in front of and behind thel oad.
The lashing rods directly absorb thep otential
shifting forc es.
Securing loads on thec argo compartmen tfloor
by lashing them down is onl yrecommended for Tr
ansporting 187